Horno Solar Olla Solar (Solar Oven)

related: food, energy

Requisitos

Requisitos para tener exito con la olla solar
  • Tiempo para planear
  • Ganas de aprender como aprovechar el sol
  • Capacidad para innovación

Sugerencias

Empezar temprano, 10 - 11am al mas tardar

Colocar su olla/horno solar en el pleno sol..ubicarse atras del horno para entender cual es el trayectorio del sol....posicionar el horno para que esta en la direccion del sol.

Mientras el horno se calienta, preparar receta*...para aprender la capacidad del horno y la fuerza del sol, empieze con cantidades pequenos. (1 taza de arroz con 2 de agua; un pastelito de 1/4 kilo; una lazagna o un flan chico)

Asegurar que durante la temporada de coccion, que no le toque sombra al horno...rotarlo a cada hora para seguir el sol...esto es parte del proceso de entender la fuerza del sol...es variable.

La tapadera se puede anublar con vapor....con agaradora y toallita, rapidamente levante la tapadera y sequela...rapidamente repone la tapadera para no perder el calor del horno.

Cuando ya esta su receta, ocupe agaradores en las 2 manos para sacarlo.....CUIDADO .. puede quemarse!

*frijoles deben de remojar en agua la noche anterior....
#si no puede mover el horno a cada rato, coloquelo para medio dia--los reflectores dirigen el sol hacia adentro

RECETAS FACILES-- arroz, lentejas, guisos de queso y de pollo, cazuelas de fideo o tortilla, pan de platano, flan, budin de pan

RECETA DE PASTELITO: 1/2 taza mantequilla/margarina/aceite derritida, 1 taza azucar, 2 huevos MESCLAR TODO EN UN RECIPIENTE.
....AGREGAR 1.5 tazas harina integral, 1 cucharadita bicarbonato, pizca de sal CON LOS OTROS INGREDIENTES....
AGREGAR 1 TAZA DE SABOR PREFERIDO A LA MASA.: ejemplos son nuez, pasas, fruta picada, chocolate picado, mermalada, zanajoria o calabacita rallada, chocolate en polvo, etc. ..
LA MASA VA A ESTAR ESPESA.....AHORA AGREGAR LICUIDO (leche, jugo, agua) HASTA TENER UNA CONSISTENCIA BUENA....
ENGRASAR MOLDE (el peltre negro) Y COLOCAR EN LA OLLA/TAPADERA DE CRISTAL ..COLOCAR SOBRE EL PANEL REFLECTOR Y GUIAR HACIA EL SOL......LEVANTAR LA TAPADERA DE VEZ EN CUANDO PARA SECARLA CON TOALLA SI SE HUMEDECE....METER PALILLO O CUCHILLO PARA PROBAR SI ESTA TERMINADO...DEBE DE SALIR LIMPIO


THE HOT POT

If you have sunshine, you can cook beans, rice, cakes, casseroles, desserts....and much more.

In oaxaca city, where sun is plentiful most of the year....we do have some cloudy and windy seasons, but you can learn to plan wisely at those times....

Consider the following: on the coast, the sunshine is intense and solar cooking is an ideal option. In the central valleys, we usually have at least 4 to 5 hours of hot sun everyday, even during the rainy season. Up in the mountains, there are areas that are somewhat protected and get good sun, but the solar cook is more limited.

IF you are looking for ways to lessen your carbon footprint, solar cooking is a very rewarding and ecological option. The method that we are promoting now is THE HOT POT... it is a collapsible metal reflector that surrounds a big Pyrex bowl with lid.....within the bowl is a black enamel tin liner which is the cooking receptacle for baking lasagna, casseroles and soups.

This oven is portable and is great for car camping!

HOW does it work ? the reflector permits the sun to hit the cooking pot from all sides...(be careful to never look directly into the bright reflection)...
the pyrex glass bowl acts as solar panel that lets the light rays in, and the black bowl within is a heat sink. the airspace between the glass and black bowls heats up and actually does the cooking....put a little water in the black bowl and watch it come to a bowl within an hour....

THINGS to understand about solar cooking......
it is a slow cooking method and it takes a little planning . preheat your HOT POT in the sun and plan to get your recipe prepared and into the sun by 10 am....
the first thing you will ask is how long will it take to cook ___?
the answer is that it depends on the season and the day as well as the quantity of food you are cooking. A hot sunny day will give faster results than a semi cloudy day...(you need at least 15 minutes of sun per half hour); cooking a half cup of rice will be faster than cooking 3 cups of beans*.
the point im trying to make is that there are several factors that affect solar cooking success and experience is the best teacher. start with small quantities until you get the hang of it.....I always get my oven loaded by 10 am. and then plan to sit down to a good hot meal at 2pm.
  • dried beans should soak in water overnight

TRACKING THE SUN......if i am at home i might turn the reflector towards the sun every hour or so. to do this, i stand behind the reflector and point it towards the sun as it travels across the sky.
if i am not going to be at home, i point the reflector towards the sun's location at noon.(this is something that you check out the day before).
by setting the reflector towards noon day sun, you are able to catch light rays from 10 am to 2pm.

EASIEST RECIPE IDEAS:
rice, lentils, noodle casseroles, cheese and chicken dishes, apple crisp, flan, bread pudding, banana bread

EASY CAKE RECIPE: 1/2 cup melted butter or margarine or oil, 1 cup sugar, 2 eggs.....MIX TOGETHER IN BOWL
MEASURE OUT 1.5 cups w.w. flour, 1 teasp. bicarbonate of soda, pinch of salt....MIX AND THEN COMBINE WITH WET INGREDIENTS
ADD 1 CUP OF ANY FLAVORING OPTIONS: nuts, raisins, chopped fruit, chocolate bits, jam, grated carrots or squash, cocoa powder, etc.
THE BATTER WILL BE DRY..BEAT AND ADD LIQUID (milk, juice, water) until the batter is good consistancy. PUT BATTER IN BUTTERED BLACK ENAMALLED TIN PAN
PUT PAN IN SOLAR OVEN (hot pot), AND SET ALL OUT ON METAL REFLECTOR FACING THE SUN...... LIFT LID ON OCCASION TO QUICKLY WIPE OFF ACCUMULATED MOISTURE WITH A TOWEL
TEST FOR DONENESS WITH TOOTHPICK OR KNIFE....IT SHOULD COME OUT CLEAN

References

http://www.cocinasolarmexico.com.mx
http://www.ollasolar.com.mx
https://www.facebook.com/CocinaSolarMexico

Otros ejemplos

http://www.forumforthefuture.org/blog/solar-cooker-wins-climate-change-challenge
http://www.solarovens.org